Jeep Grand Cherokee Security System

4 Jun 2014 | Author: | Comments Off on Jeep Grand Cherokee Security System
Jeep Cherokee

Questions and Answers

Jeep Cherokee Security System

Q. Hi How are you? My 1994 Jeep Cherokee (ZJ) has an alarm When I set the alarm by knobs in the handle, the alarm goes

It goes off either after or after maybe up to 8 to 10 hours. is without any one trying to break in or I have followed the process to set the properly, and it seems that it get set

The security light inside the blinks for few seconds and then off and all the door are locked. Also the inside the car that shows failure modes and warning like door ajar, light, etc. sometimes especially when the alarm off, but also gives message, like tailgate not working.

I have checked the tailgate and it is okay. But looks like the was old. When I changed it the light went away, but back a day later. The battery is four years old, it is a year battery.

The connections are and okay. Looks like is very small crack in one it is not noticeable anyways.

The remote was not properly, so I changed the battery. I can not all the car with remote, but can open it the car is locked with keys or inside. I have following

What do you think is the problem, Am I the alarm properly. I have doing this for past 7 so it seems I have been it right.

How can I disable the security systems? I am if that is a problem, it would me an arm and a leg to replace any electronic module security system, so If I can disable, I can without it.

Is the security alarm and the signal panel underneath the interconnected, it seems that way to me.

Is a way to replace or repair the security myself.

Thanks,

A. A diagnostics is available in the system to verify of all monitored switches or circuits. To diagnostics without the DRB, the ignition key to the accessory position times, leaving the key in this

Upon entering diagnostics, the park, and tail lamps begin flashing to verify operation. In addition, the horn sound twice. Returning the to the OFF position will stop the from flashing while the system in diagnostics.

While in diagnostics mode, a pulse should occur at of the following events, which proper operation. (Note some vehicles equipped the vehicle theft security are also equipped with entry (see chart). in diagnostic mode, it is recommended the illuminated entry relay be Otherwise it is necessary to wait for the 30 delay after each opening or closure.)

Beginning all doors closed, open, close each door. The will sound when the jamb/ajar switch closes, and again when the switch There must be a 1-second between closing and opening the

Open, then close the The horn will sound the hood is opened, and again it is closed.

Activate the power locks in both the lock and directions. The horn will after each activation Viper).

Rotate the key in each lock cylinder to the unlock (except Viper). The horn sound as the switch closes, and when it opens. There be a 1-second delay between switch states, or the horn not sound.

Activate the remote entry in both the lock and directions. The horn will after each activation.

the key to the ignition RUN position. A single pulse will indicate operation of the ignition input. also will take the out of the diagnostics mode.

For any of these tests, if the switch not remain open or closed for at 1 second, the horn will sound once.

The lack of a pulse during any operation either:

a switch failure

the of that input to the vehicle security system module

a internal to the module

Check for at the switch. If this is good, for an open or shorted wire the switch and alarm module. check if the Powertrain Control (PCM) has been replaced

For the first 20 engine starts a new PCM, the vehicle theft system will function except it will not prevent the from running.

NOTE: A PCM a vehicle equipped with a Theft Security System cannot be used in a vehicle is not equipped with a vehicle security system.

If the VTSS indicator lamp on and stays on after the ignition has placed in the ON position, the CCD bus communication the powertrain control module has been lost.

This help you pinpoint the problem. If you will need to get the service you can get it at the Public Library in the Reference and use the diagnostic procedure with the diagram to track it down.

If you want to disable it, unplugging the module will disable the

Additional Information provided of AllDATA

Back to Index – 2004 Vincent T.

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